What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

Back to Search

haproxy.org

https://haproxy.org· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

haproxy.org

Mobile

Sponsored

Hosting Provider

Adista / RMI Informatique

IP Address

37.58.153.207

Server Location

🇫🇷 Maxéville, France

ASN

AS16347

Server

Apache

Nameservers

ns-1802.awsdns-33.co.uk.ns-243.awsdns-30.com.ns-517.awsdns-00.net.ns-1087.awsdns-07.org.

Performance

Page Speed

51 KB

8 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Adista / RMI Informatique

Technology Stack

4 Technologies Detected

Analytics

Tag Managers

Payments

Web Servers

SEO Analysis

D58/100

haproxy.orghaproxy.org

HAProxy - The Reliable, High Perf. TCP/HTTP Load Balancer

Reliable, High Performance TCP/HTTP Load Balancer

Title Length57 chars

Recommended: 50-60 chars

Description Length49 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (7/7)

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

9 URLs

robots.txt

3 rules

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

64d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

20.03.2025

Valid Until

17.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.haproxy.orghaproxy.org

SHA-256 Fingerprint

1F:C2:58:1F:79:48:87:6A:15:C8:10:E1:11:CD:39:E5:3F:8F:F1:80...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

alt-svc

h3=":443"; ma=3600

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Thu, 12 Feb 2026 12:11:02 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.haproxy.org

Domain Information

haproxy.org

Domain Age

13y 9m

Created

26.04.2012

Expires

26.04.2028

Last Updated

11.10.2024

Registrar

DNC Holdings, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

helvetica

48/100

Readability

/30

12/40

12px · LH 1.33

Hierarchy

/20

25/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

helvetica

Sans24px

Body Font

helvetica

Sans12px

Contrast Ratio

Reading Comfort

~150 CPL

Needs attention

24px

18px

16px

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

❌ Very long lines: ~150 chars/line causes eye strain. Use max-width: 65ch.

⚠️ Cramped layout: 11 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

GitHub

Sponsored

Last analyzed: 12 Feb 2026 at 12:11

Historical Analysis & Change Tracking